Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 03-20-2000, 11:26 AM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
I think there is way too much paranoia here. The only motors that give no warning are the single cam V8s. The diesels will rattle quite some time before failing. The noise should be apparent to those paying attention; even over the diesel noise.

The real breakthrough in confidence comes with all the motors with ratcheting chain tentioners. 102/103/104, 601/602/603,606. I presume the 119 motors must have a ratcheting tentioner but we haven't done any failures on those motors yet.

------------------
Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician
Reply With Quote
  #17  
Old 03-20-2000, 04:50 PM
Registered User
 
Join Date: Jan 2000
Location: St. Paul, Minnesota, USA
Posts: 58
Thanks for the comforting thoughts...but, the rough running certainly merits a trip to the shop.

Is there anything obvious & easy that I should check in the meantime?



------------------
Tom

'87 560 SL
'74 MGB
Reply With Quote
  #18  
Old 03-20-2000, 06:46 PM
arosen@troweprice.com
Guest
 
Posts: n/a
I decided to be safe and dropped my car off at Roy Fields (410.252.4101) and they are going to do the chain + tensioner for $375 total. From what he told me, the problem occurs more often where the chain stretches, then eventually jumps a tooth. Ouch!!
I know from working on our dragster, what a motor looks like when the valve train jumps at 11,500+ RPMS.
From experience, I have been there, done that and even bought a T-shirt!!
Thanks for all of yourt help!
ARI
Reply With Quote
  #19  
Old 03-20-2000, 06:49 PM
arosen@troweprice.com
Guest
 
Posts: n/a
One more thing, with the 91 300D is it critical to replace the rails as well? I am under the impression that I am just getting the cahin and tentioner replaced, but not the rails.
Reply With Quote
  #20  
Old 03-20-2000, 07:34 PM
Mark Herzig's Avatar
Registered User
 
Join Date: Apr 1999
Location: Austin, Texas
Posts: 380
When are you guys seeing replacements for the 603 300SDL?

------------------
Mark Herzig
1992 500E (86,000 miles)
1987 300SDL (110,000)


Reply With Quote
  #21  
Old 03-20-2000, 08:31 PM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
The M119 gas engine doesn't have a ratchet style tensioner, & yes they can jump & cause problems just like M116/117. The inner rail seams to break on this engine.

Most diesels dont need rails on normal chain replacement.

Benz issued a S.I. on all diesels from 7/92 thru 7/94 on possible chain failure. The only other engine they issued a bulletin on is the 1984-88 190E 2.3 8V, timing chain inspection every 60K miles is recommended.

------------------
MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. TECH
190E 2.3 ITS RACECAR
1986 190E 16V
Reply With Quote
  #22  
Old 03-20-2000, 09:52 PM
Junior Member
 
Join Date: Mar 2000
Posts: 28
quote:
Originally posted by Mark Herzig:
When are you guys seeing replacements for the 603 300SDL?



Mark I like to replace the 603 chain before 175k. I have seen 2 catastrophic failures on these engines and dont like to risk it. It will make a difference in the injection timing too, if it has not been adjusted to compensate for wear in the past.

------------------
Michael Haven CMAT,CMM,L1
MPH Automotive Services
16510 Park Row
Houston, Texas, 77084
281-579-8885
Reply With Quote
  #23  
Old 03-21-2000, 12:35 AM
Senior Member
 
Join Date: Apr 1999
Location: Walnut,CA,USA
Posts: 554
We just have a 1995 500SL with 119 engine tow in today guess what uper timing rail broken and driver side exh camshaft broken cause by the broken chain rail,vehicle just over 100,000 miles,have your check your timing chain and rails ?
ps. camshaft is $675.00 ouch!

------------------
MB STARS Master Guild Technician,12 years MB tech
6 years independent shop owner
Reply With Quote
  #24  
Old 03-21-2000, 07:47 AM
arosen@troweprice.com
Guest
 
Posts: n/a
I think the moral of the story is, if you have any doubts about your timing chain, take your car to a reputable MERCEDES mechanic and have him/her look at it. I can tell you from experience that all cars operate with the same principles, but they all have their special points that MUST be understood by someone who lives, sleeps and breathes MERCEDES.
I have about 10 years experience on SCCA racecars, but that still does not qualify me to know Merecedes like the back of my hand.
After reading this borad I think we all know which people are seeing the big picture.
A big THANK YOU to everyone who has contributed factual information to this subject.
ARI
Reply With Quote
  #25  
Old 03-21-2000, 11:52 AM
elau's Avatar
Registered User
 
Join Date: Nov 1999
Location: MD.
Posts: 1,725
ARI,
Notice that you are from the Baltimore area. Do you have any recommendations on reputable MB tech I can use? I have been taking my car to Benson in Annapolis, but they charge $69 per hour for labor. What bothers me most is the dealer insists that I should not worry about it since I have double row of chains. But then again my car is still under warrenty, so in case the chains do go, its not $$$ out of my pocket. BTW, I have 64K miles on mine.

95 R129
98 ML320
Reply With Quote
  #26  
Old 03-21-2000, 02:26 PM
arosen@troweprice.com
Guest
 
Posts: n/a
I would use Roy Fields Mercedes. They are located in Timonium, directly across the street from the fairgrounds. The number is 410.252.4101, tell them ARI sent you from the internet.
They have been very good to me. I brought my 1991 300D in two weeks ago, before I bought it and they gave me a list of things it needed so I could deduct it from the price. When they started to do the work and pulled things off, there was $600.00 worth of hidden stuff that needed to be done, but I was not charged a penny for the extras, since they failed to find it on the pre-inspection.
I do not mind if a person makes a mistake, but I do mind if they try to hide it or cover it up.
Not so in this case.
ARI
Reply With Quote
  #27  
Old 03-21-2000, 06:21 PM
Registered User
 
Join Date: Jan 2000
Location: St. Paul, Minnesota, USA
Posts: 58
Again, thanks everyone for such a complete discussion...I'm dropping my car off tomorrow...as I now reveal my complete ignorance:
What specifically do I ask the shop to do, without openning myself up to an enormous "search and destroy" bill?
Again, the car is an '87 560SL with 101,000 miles...and is there a relatively easy diagnosis for the cruise control? Or should I save that one for when the budget is a little less vulnerable?

A tip of the cap to all you professionals who contribute here....


------------------
Tom

'87 560 SL
'74 MGB
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Just how often should a timing chain be replaced? Greg in Oz Tech Help 16 07-25-2005 06:02 PM
Info on how to replace timing chain tensioner & upper chain guide bodyart27 Diesel Discussion 11 10-15-2003 05:53 PM
OM603 timing chain installation report gsxr Diesel Discussion 3 08-15-2003 12:00 PM
W126 Timing chain help BenzMatic Tech Help 5 08-03-2003 06:14 AM



All times are GMT -4. The time now is 02:13 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page